Issue with TLS certificates using Lets Encrypt CA
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Issue with TLS certificates using Lets Encrypt CA Cloudflare operates global DNS, CDN, WAF, and edge network services. Outages here often affect many sites and APIs that sit behind their network.
resolved · 31 May 2026, 08:55 UTC
This incident has been resolved.
identified · 31 May 2026, 06:41 UTC
The issue has been identified and a fix is being implemented. Customers are advised to change to a different Certificate Authority as a workaround.
investigating · 31 May 2026, 03:16 UTC
Cloudflare is investigating issues with Let's Encrypt certificates. Some visitors may experience TLS connectivity issues due to potentially unsupported CA bundling for a subset of Cloudflare customers. Customers are advised to change to a different Certificate Authority as a workaround.
5
Related incidents
5h 38m
This incident
2h 52m
Avg. resolution time
Slower
vs. average
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